<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>标签选择器</title>
    <style type="text/css">
        h3{
            color: yellow;
            font-size: 30px;
            background: lightblue ;
            width: 200px;
        }
    </style>
</head>
<body>
<h3>标签选择器</h3>

</body>
</html>